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Journal article
Keita (Aptandraceae-Olacaceae s.l.), a new genus for African species previously ascribed to Anacolosa, including K. deniseae sp. nov., an Endangered submontane forest liana from Simandou, Republic of Guinea.
We show that the two continental African species previously ascribed to the genus , differ in so many architectural, floral and vegetative characters from the remaining species of the genus (which occur from Madagascar to the western Pacific, including the type) that they clearly represent a separate genus. The African... -
Journal article
A taxonomic synopsis of unifoliolate continental African Vepris (Rutaceae).
Descriptions and illustrations are presented for three new species to science, Cheek Cheek (both Udzungwa Mts, Tanzania), and Q.Luke & Cheek (SE Kenyan kaya forests), in the context of a synoptic taxonomic revision and with an identification key to all the known unifoliolate taxa of in continental Africa. The new... -
Journal article
Barking up the wrong tree: the dangers of taxonomic misidentification in molecular phylogenetic studies.
– is a Brazilian endemic genus that has sat uncomfortably in Convolvulaceae where it was placed due to an enlarged and adnate fruit bract typical of . A recent molecular phylogeny suggested that two of its five morphologically almost identical species actually belong to two different families, Malpighiaceae (superrosids) and... -
Journal article
The Nepenthes micramphora (Nepenthaceae) group, with two new species from Mindanao, Philippines.
The N. micramphora group is erected to accommodate the species N. micramphora, N. abgracilis sp. nov. and N. cid sp. nov. from submontane habitats in Mindanao, Philippines. An overview of the genus in the Philippines is presented in the context of recent discoveries. The greater taxonomic importance of pitcher characters... -
Journal article
Three new or resurrected species of Leptonychia (Sterculiaceae- Byttneriaceae-Malvaceae) from West-Central Africa.
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Journal article
Chemistry, taxonomy and ecology of the potentially chimpanzee-dispersed Vepris teva sp.nov. (Rutaceae) endangered in coastal thicket in the Congo Republic.
Continuing a survey of the chemistry of species of the largely continental African genus , we investigate a species previously referred to as sp. 1 of Congo. From the leaves of sp. 1 we report six compounds. The compounds were three furoquinoline alkaloids, kokusaginine (1), maculine (2), and flindersiamine (3),... -
Journal article
Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects.
Species of the genus Engl. (Podostemaceae) are African rheophytes, restricted to rapids and waterfalls as are all members of the family. Previously, was shown to be polyphyletic with two separate clades. The name Engl. was recently resurrected for one clade that is sister to the American genera (Tul.) Wedd., Michx.... -
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Journal article
Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon
This is the first revision in more than 100 years of the African genus Pseudohydrosme, formerly considered endemic to Gabon. Closely related to Anchomanes, Pseudohydrosme is distinct from Anchomanes because of its 2-3-locular ovary (vs. unilocular), peduncle concealed by cataphylls at anthesis and far shorter than the spathe (vs. exposed,...Cheek, Martin ; Tchiengué, Barthélemy ; van der Burgt, Xander